For ideas with staying power – make your mark! Tom's Studio's Permanent Inks are designed to work seamlessly with the Ori Refillable Marker System, delivering bold, long-lasting colour without the harsh fumes and chemical nasties often associated with traditional permanent markers. Water-based, richly pigmented and smooth-flowing, they're made for everyday creativity, organisation and mark-making. Available in Black and Blue, each ink is formulated to write confidently on paper, card, plastic, glass, ceramic, metal, wood, packaging and more. Whether you're labelling storage jars, personalising packaging, sketching ideas or tackling creative projects beyond the page, these inks are designed to stick around. Each bottle holds 30ml of ink. Each ink comes in a glass bottle with a handy pipette for easy application. All of our permanent inks are water-based and vegan.